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Huge tunnel bomb blast rocks the Richter Scale

The bomb was so powerful it triggered earthquake measuring devices in Turkey

Syrian rebels have attacked government forces in Aleppo with a tunnel bomb so powerful that it triggered earthquake measuring devices in neighbouring Turkey.

Video footage disseminated by the Nusra Front, a jihadist group aligned with al-Qaeda, showed what was reported to be the Syrian Air Force Intelligence headquarters in Aleppo being lifted several metres into the air by the force of a huge subterranean blast.

Amid the sounds of heavy gunfire and artillery, and to cheers from Nusra Front fighters and other attacking rebel groups, the building then largely collapsed.

The Kandilli Observatory and Earthquake Research Institute in Istanbul said that a seismic disturbance with a magnitude of 3 was recorded in the Aleppo area at 5.31pm local time on Wednesday.

The Syrian Observatory for…

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